Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7591329 | Auger with a movable gouge for making a borehole | Daniel Perpezat, Philippe Chagnot, Régis Bernazinski | 2009-09-22 |
| 6471445 | Rotary displacement piling equipment | — | 2002-10-29 |